STEPS TO REPRODUCE: 1. Create a project and add a team member2. Create a task and assign the team member to it.3. Open the calendar of the resource assigned to the task4. Set the task start date as a holiday for that resource5. Set the task as locked from scheduling6. Open the project in OWB and edit the 'Autoschedule' option7. Only tick 'Schedule Assignments on Locked Tasks'8. Click 'OK'